CN211111522U

CN211111522U - Aquaculture water treatment facilities

Info

Publication number: CN211111522U
Application number: CN201921314267.2U
Authority: CN
Inventors: 张建荣
Original assignee: Chenzhou Suxian Dongjiang Ecological Agriculture And Forestry Co ltd
Current assignee: Chenzhou Suxian Dongjiang Ecological Agriculture And Forestry Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-07-28
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a water treatment device for aquaculture, which comprises a wastewater adjusting tank, a coagulation reaction tank, a coagulation sedimentation tank, a filtering system, a reverse osmosis system, an evaporative crystallizer and a filter press which are communicated in sequence; the filtering system comprises a spiral filter press, an air flotation machine, a quartz sand filter and an activated carbon filter which are sequentially communicated; the clean water and waste water output ends of the reverse osmosis system are respectively communicated with the clean water recovery mechanism and the evaporation crystallizer; the system adopts a structure that a filtering system comprises quartz sand, an activated carbon filter and other treatment equipment and is communicated with a reverse osmosis system, thereby overcoming the defect that the prior art cannot meet the requirements of wastewater treatment, recycling and reutilization; it is widely suitable for wastewater treatment.

Description

Aquaculture water treatment facilities

Technical Field

The utility model relates to a water treatment processing equipment especially relates to a aquaculture water treatment facilities.

Background

Under the condition that available water resources are increasingly exhausted, the treatment and recycling of the wastewater are increasingly important, and the requirement of the public on the wastewater discharge standard is higher and higher, so that higher requirements are provided for the wastewater treatment technology.

The method comprises the following steps that the breeding mode of aquaculture such as shrimps, oysters, fishes and the like needs to be changed frequently with running water, the breeding mode of poultry such as chickens, ducks, geese and the like needs to be washed with excrement, the breeding mode also comprises the mode that human life and the like can generate a large amount of waste water, and the traditional mode is that the waste water is directly discharged, so that the environment is polluted, and the waste of water resources is caused; at present, a lot of self-built wastewater treatment equipment for cultivation farms exist, but generally only simple precipitation and filtration separation are carried out, and the wastewater is directly discharged after being treated, so that the requirement of water treatment recycling cannot be met, and the waste of water resources is large.

Disclosure of Invention

In view of the above situation, an object of the utility model is to provide a aquaculture water treatment device, thereby it adopts the structure that sets up processing equipment such as quartz sand and activated carbon filter and intercommunication reverse osmosis system to overcome prior art and can not satisfy the defect that waste water treatment retrieves and recycles, overall structure overall arrangement scientific and reasonable can the water economy resource, satisfies people's growing waste water treatment requirement to promote the harmonious development of environment and economy, market prospect is wide, convenient to popularize and use.

In order to realize the aim, the water treatment device for the aquaculture industry comprises a wastewater adjusting tank, a coagulation reaction tank, a coagulation sedimentation tank, a filtering system, a reverse osmosis system, an evaporative crystallizer and a filter press which are sequentially communicated; the filtering system comprises a spiral filter press, an air flotation machine, a quartz sand filter and an activated carbon filter which are sequentially communicated; and the clean water and waste water output ends of the reverse osmosis system are respectively communicated with the clean water recovery tank and the evaporative crystallizer.

In order to realize the optimization of the structure and the effect, the further measures are as follows: and the sludge and wastewater output ends of the filter press are respectively connected with the sludge outward conveying mechanism and the wastewater regulating tank.

The input end of a spiral filter press in the filtering system is communicated with the output end of the coagulating sedimentation tank, and a slag discharge port of the spiral filter press is connected with a sludge outward conveying mechanism.

And a filtrate outlet of the spiral filter press is communicated with the input end of the air floatation machine.

The output end of an activated carbon filter in the filtering system is communicated with the input end of the reverse osmosis system.

The utility model discloses compare the produced beneficial effect of prior art:

(I) the utility model discloses a set up filtration system and include screw press and air supporting machine, screw press can separate the thick granule in the sewage and discharge through the scum outlet as thick separating mechanism, and air supporting mechanism is used for getting rid of the aquatic suspended particle, can release tiny bubble in the air supporting case and mix with suspended solid or tiny granule in the quality of water and suspend on the liquid level, strike off the suspended solid and discharge through the scum outlet by the scraper means, the suspended solid clearance in general quality of water can reach more than 90%, thereby do benefit to follow-up technology and handle, reduce the sewage treatment cost, improve sewage treatment efficiency;

(II) the utility model discloses a filtration system includes quartz sand filter and active carbon filter, still contains a small amount of fine graininess suspended solid or metal ion in the filtrating after the coarse filtration, adopts quartz sand filter can block the suspended solid, and active carbon filter can adsorb a small amount of suspended solid and metal ion too to realize safer, stable, effectual removal effect, and it is low to go out water pollution index SDI value, and water quality is more stable, can directly supply water for next procedure reverse osmosis system;

(III) the utility model adopts the structure that the clear water and the waste water output end of the reverse osmosis system are respectively communicated with the clear water recovery tank and the evaporative crystallizer, so that the waste water can be conveyed to the next procedure for continuous treatment, and the clean clear water can be returned to cultivation or living for use, thereby saving water resources, greatly reducing the operation cost of production equipment and being beneficial to environmental protection compared with the prior art that the waste water is directly discharged after being treated;

(IV) the utility model discloses a thereby it can not satisfy the defect that waste water treatment retrieves and recycles to set up the structure that filtration system includes treatment facility such as quartz sand and activated carbon filter and communicates reverse osmosis system, overall structure scientific and reasonable, can the water economy resource, reduce the running cost, satisfy people's growing sewage treatment requirement to promote the harmonious development of environment and economy, have apparent economic benefits and social.

The utility model is widely suitable for the matched use of wastewater treatment.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the installation structure of the coagulation reaction tank of the present invention.

Fig. 3 is a schematic view of the installation structure of the middle filtering system of the present invention.

Detailed Description

Referring to fig. 1 to 3, the present invention is realized as follows: a sewage treatment device comprises a wastewater adjusting tank, a coagulation reaction tank, a coagulation sedimentation tank, a filtering system, a reverse osmosis system, an evaporation crystallizer and a filter press which are sequentially communicated; the filtering system comprises a spiral filter press, an air flotation machine, a quartz sand filter and an activated carbon filter which are sequentially communicated; and the clean water and waste water output ends of the reverse osmosis system are respectively communicated with the clean water recovery tank and the evaporative crystallizer.

As shown in figure 1, the utility model discloses mud outward transport mechanism and waste water equalizing basin are connected respectively to the mud and the waste water output of well pressure filter, and sewage flows through the pressure filter after, mud then stops on filter media as on the filter cloth to pile up through the compression and form the filter cake, be connected the transport through mud output and mud outward transport mechanism afterwards and carry away, and the filtrating part that sees through the filter cloth then returns the waste water equalizing basin circulation and carries out sewage treatment.

As shown in fig. 2, the coagulation reaction tank of the utility model comprises a hydrolysis acidification tank, a stirring reaction contact oxidation tank and a flocculation tank which are communicated in sequence, wherein the input end of the hydrolysis acidification tank is communicated with the output end of a wastewater adjusting tank, and the output end of the flocculation tank is communicated with the input end of a coagulation sedimentation tank; by adopting the structure, the sewage enters the coagulation reaction tank for hydrolysis acidification treatment, oxidation and stirring reaction treatment and flocculation treatment in sequence after being regulated by the wastewater regulating tank, and then enters the coagulation sedimentation tank for sedimentation treatment; hydrolytic acidification is a treatment method between aerobic and anaerobic, mainly converts non-soluble organic matters in wastewater into soluble organic matters, including converting organic matters which are difficult to biodegrade into organic matters which are easy to biodegrade, thereby improving the biodegradability of the wastewater, facilitating the subsequent process treatment, reducing the sewage treatment cost and improving the sewage treatment efficiency; when sewage enters the stirring reaction contact oxidation tank, magnesium oxide or alkali liquor can be added into the oxidation tank to accelerate neutralization of pH value (namely PH value) through stirring reaction, so that the wastewater is oxygenated and then contacts with a biological membrane through a filler in the oxidation tank at a certain flow rate, thereby achieving the purpose of purifying the wastewater and being beneficial to the subsequent flocculation treatment process; the flocculation tank is used for flocculating in a water tank by utilizing particles in water flow through turbulent motion of the water flow, the turbulent motion of the water flow can be flocculated by means of improving the water flow speed or slowly mechanically stirring, partition plates can also be arranged in the flocculation tank, the water flow flows among the partition plates, the water flow section is smaller, and the flow speed is improved; or changing the spacing of the baffles to reduce the average flow rate of the water stream to accommodate the need for floc formation.

As shown in fig. 3, the input end of the screw filter press in the filtering system of the utility model is communicated with the output end of the coagulating sedimentation tank, the slag discharge port of the screw filter press is connected with the sludge outward transportation mechanism, and the filtrate discharge port of the screw filter press is communicated with the input end of the air flotation machine; when sewage flows through the filtering system, coarse particles of the sewage are subjected to solid-liquid separation by a screw filter press, the sludge is conveyed away by connecting a slag discharge port and a sludge outward conveying mechanism, and a filtrate part penetrating through filter cloth is communicated with the next process; the output end of an activated carbon filter in the filtering system is communicated with the input end of the reverse osmosis system, and filtrate filtered by activated carbon can be conveyed to the reverse osmosis system for treatment.

The wastewater adjusting tank of the utility model can adjust the water quantity and the water quality, which comprises adjusting the pH value and the water temperature of the wastewater, plays the roles of preliminary sedimentation and separation, can balance the water quality, can adjust the water quantity if the water inflow is not balanced, and is beneficial to the next process; the waste water can be used as accident drainage, and if the following treatment process has small faults, the waste water can be temporarily stored in the waste water to play a role of buffering, so that the production process cannot be stopped because the waste water cannot be discharged.

The utility model discloses well coagulating sedimentation pond is to deposiing silt or excrement and urine in the waste water, and the coagulation process is the most basic and very important processing procedure among industrial water and domestic sewage treatment, through throwing some medicaments such as polyacrylamide PAM, or polyaluminium chloride coagulant into aquatic, make the granule that is difficult to deposit in aqueous can polymerize each other and form the colloid, then combine with the impurity in the water and form bigger flocculating constituent; the flocculating body has strong adsorption force, can adsorb suspended matters, part of bacteria and soluble substances, and sinks due to the increase of the volume of the flocculating body through adsorption; a water treatment method in which colloids and fine suspended solids in wastewater are coagulated into flocs under the action of a coagulant and then separated and removed; the application of the coagulating sedimentation in water treatment is very wide, and the coagulating sedimentation can not only reduce the sensory indexes of the raw water such as turbidity, chromaticity and the like, but also remove various toxic and harmful pollutants.

The filtering system in the utility model comprises a spiral filter press, an air flotation machine, a quartz sand filter and an activated carbon filter; the filtrate filtered by the spiral filter press and the air floatation machine contains a small amount of fine granular suspended matters, and meanwhile, in the process of precipitation, metal ions are not completely removed due to the solubility product relationship; the quartz sand filter can block suspended matters, the activated carbon filter can also absorb a small amount of suspended matters and metal ions, so that a safer, more stable and more effective removal effect can be realized, the removal effect is better, the effluent pollution index SDI value is low, the water quality is more stable, and water can be directly supplied to a reverse osmosis system of the next process; the filtering system has the characteristics of high purification degree, impact resistance, stable and reliable operation, simple operation, convenient operation and management, simple maintenance, low investment, low energy consumption and the like.

The reverse osmosis system in the utility model comprises a reverse osmosis membrane (RO), a high pressure pump and a security filter which is arranged for protecting the reverse osmosis membrane; the working principle is as follows: a specially-made high-pressure water pump is used for adding raw water to 6-20 kg of pressure, so that the raw water permeates a reverse osmosis membrane with the pore diameter of only 0.0001 micron under the action of the pressure, water molecules and solvents with the volume of less than 0.0001 micron can be allowed to pass through, and chemical ions, bacteria, fungi and virosomes can not pass through but can only be discharged along with wastewater; the cartridge filter is generally internally provided with filter elements with the filter aperture of 5 mu m, and the filter elements can filter out any particles with the size larger than 5 mu m and play a role in protecting a downstream reverse osmosis membrane (RO), otherwise, the surface of the reverse osmosis membrane (RO) is very easy to scale.

The evaporative crystallizer in the utility model is a crystal slurry circulating continuous crystallizer, during operation, feed liquid is added from the lower part of a circulating pipe, and is mixed with crystal slurry leaving the bottom of a crystallization chamber, and then the mixture is sent to a heating chamber by a water pump, and the crystal slurry is heated in the heating chamber (usually 2-6 ℃), but does not evaporate; the hot slurry is boiled after entering the crystallization chamber to bring the solution to a supersaturated state, whereby a portion of the solute is deposited on the surface of the suspended crystal grains to grow the crystals, and the undeposited slurry is discharged from the upper portion of the circulation pipe.

The filter press in the utility model generally adopts a plate-and-frame filter press, and is applicable to suspension liquid with large filter residue compressibility or nearly incompressible suspension liquid; the plate-and-frame filter press is mainly used for separating solid and liquid, and the mud cake filtered by the filter press has higher solid content and excellent separation effect; the basic principle is that the mixed liquid flows through a filter medium (filter cloth), the solid stays on the filter cloth and gradually accumulates on the filter cloth to form a filter mud cake, and the part penetrating through the filter cloth becomes filtrate without the solid.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can be within the technical scope of the present invention, and the technical solution and the concept of the present invention should be replaced or changed equivalently, and all should be included in the scope of the present invention.

Claims

1. A water treatment device for aquaculture is characterized by comprising a wastewater adjusting tank, a coagulation reaction tank, a coagulation sedimentation tank, a filtering system, a reverse osmosis system, an evaporative crystallizer and a filter press which are sequentially communicated; the filtering system comprises a spiral filter press, an air flotation machine, a quartz sand filter and an activated carbon filter which are sequentially communicated; and the clean water and waste water output ends of the reverse osmosis system are respectively communicated with the clean water recovery tank and the evaporative crystallizer.

2. The aquaculture water treatment device of claim 1, wherein the sludge and wastewater output ends of the filter press are respectively connected with the sludge outward transport mechanism and the wastewater regulating tank.

3. The aquaculture water treatment device of claim 1, wherein an input end of the screw filter press in the filtering system is communicated with an output end of the coagulating sedimentation tank, and a slag discharge port of the screw filter press is connected with the sludge outward conveying mechanism.

4. The aquaculture water treatment device of claim 1, wherein the filtrate outlet of the screw filter press is communicated with the input end of the air flotation machine.

5. The aquaculture water treatment device of claim 1, wherein the output end of the activated carbon filter in the filtering system is communicated with the input end of the reverse osmosis system.